Support disabling of cookie load/save via SetSupportedSchemes (see issue #2622).

With this change the CefCookieManager::SetSupportedSchemes method can be used
to disable all loading and saving of cookies for the associated request context.
This matches functionality that was previously available via GetBlockingManager.

This change also fixes a bug where Set-Cookie headers returned for a request
handled via CefSchemeHandlerFactory would be ignored if there was not also a
CefResourceRequestHandler returned for the request.

To test: All CookieTest.* tests pass.

libcef_dll/cpptoc/cookie_manager_cpptoc.cc

@@ -9,7 +9,7 @@
 // implementations. See the translator.README.txt file in the tools directory
 // for more information.
 //
-// $hash=a672fab541f9c28f77a06c31d89f5a9d66c78751$
+// $hash=887754026eb62e631a0279fbba8fb1c370f0bcf7$
 //
 
 #include "libcef_dll/cpptoc/cookie_manager_cpptoc.h"
@@ -42,6 +42,7 @@ namespace {
 void CEF_CALLBACK
 cookie_manager_set_supported_schemes(struct _cef_cookie_manager_t* self,
                                      cef_string_list_t schemes,
+                                     int include_defaults,
                                      cef_completion_callback_t* callback) {
   // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
 
@@ -60,7 +61,8 @@ cookie_manager_set_supported_schemes(struct _cef_cookie_manager_t* self,
 
   // Execute
   CefCookieManagerCppToC::Get(self)->SetSupportedSchemes(
-      schemesList, CefCompletionCallbackCToCpp::Wrap(callback));
+      schemesList, include_defaults ? true : false,
+      CefCompletionCallbackCToCpp::Wrap(callback));
 }
 
 int CEF_CALLBACK